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-rw-r--r--generic/tclTest.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/generic/tclTest.c b/generic/tclTest.c
index ed016fe..8d22edf 100644
--- a/generic/tclTest.c
+++ b/generic/tclTest.c
@@ -3918,7 +3918,7 @@ TestregexpObjCmd(
if (ii == -1) {
TclRegExpRangeUniChar(regExpr, ii, &start, &end);
newPtr = Tcl_GetRange(objPtr, start, end);
- } else if (ii > info.nsubs) {
+ } else if (ii > info.nsubs || info.matches[ii].end <= 0) {
newPtr = Tcl_NewObj();
} else {
newPtr = Tcl_GetRange(objPtr, info.matches[ii].start,